Vikings hunting reindeer in Norway were once confounded by "reindeer cyclones." A threatened herd would literally run circles around the fierce hunters, making it nearly impossible to target a single animal.

When the weather is all ice, snow and frigid temperatures, sometimes it feels like you’ll never get warm again. But if you can’t escape to a tropical beach vacation or go into hibernation, there are several methods you can employ to make the cold more tolerable.